Open peer commentary on the article “The Circular Conditions of Second-order Science Sporadically Illustrated with Agent-based Experiments at the Roots of Observation” by Manfred Füllsack. Upshot: The aim of my commentary is to reflect on fundamental issues related to circularity, distinction and the properties of observers.

Here, an epidemiological model considering pro and anti-vaccination groups is proposed and analyzed. In this model, susceptible individuals can migrate between these two groups due to the influence of false and true news about safety and efficacy of vaccines. From this model, written as a set of three ordinary differential equations, analytical expressions for the disease-free steady state, the endemic steady state, and the basic reproduction number are derived. It is analytically shown that low vaccination rate and no influx to (...) the pro-vaccination group have similar impacts on the long-term amount of infected individuals. Numerical simulations are performed with parameter values of the COVID-19 pandemic to illustrate the analytical results. The possible relevance of this work is discussed from a public health perspective. (shrink)

Context: Second-order cybernetics and its implications have been understood within the cybernetics community for some time. These implications are important for understanding the structure of scientific endeavor, and for researchers in other fields to see the reflexive nature of scientific research. This article is about the role of context in the creation and exploration of our experience. Problem: The purpose of this article is to point out the fundamental nature of the circularity in cybernetics and in scientific work in general. (...) I give a point of view on the nature of objective knowledge by placing it in the context of reflexivity and eigenform. Method: The approach to the topic is based on logical analysis of the nature of circularity. Mathematics and cybernetics are both fundamentally concerned with the structure of distinctions, but there can be no definition of a distinction without circularity, since such a definition would itself be a distinction. The article proceeds by explicating the structure of reflexive domains D where the transformations of the domain are in one-to-one correspondence with the domain itself. Results: I show that every element of a reflexive domain has a fixed point. This means that eigenforms arise naturally in reflexive domains. Furthermore, a reflexive domain is itself an eigenform (at a higher level. This supports the context of a second-order science that would study domains of science as part of a larger cybernetic landscape. Implications: The value of the article is in its concise reformulation of the scientific endeavor as a search for eigenforms in reflexive domains. This new view of science is promising in that it includes the former worlds of apparent objectivity and it embraces those newer worlds of science where the theories and theorists become active participants in the ongoing process of creating knowledge. Constructivist content: I argue that the perspective of reflexive domains constitutes a new way to think about the practice of science, with observers deeply imbedded, and objectivity understood as the mutual search for eigenforms. (shrink)

It is difficult to understand the meaning of 'dignity' in human rights, bioethics and nursing literature because the word is used so vaguely. Unless dignity's meaning is spelt out it can disappear beneath more tangible priorities. In this article we define dignity and show how this can help health workers to maintain the dignity of people in their care.

In view of the confusion about the use of the term ‘population’ in biology, an analysis has been made of the use of the concept of population in biology. Origin and development, logic and epistemology of the population-concept have been investigated for that purpose. It appears that several concepts of population coexist in biology. The term ‘population’ is used for all these concepts, so it is not amazing that confusion has arisen. This confusion is the more dangerous, since ‘population’ plays (...) an important part in the theory of evolution. A modus has been suggested to diminish this confusion by defining ‘population’ in a very wide sense of the term and by proposing a ‘deme’—terminology to specify the various special concepts of population. (shrink)

CHAPTER INTRODUCTION: SOME CONCEPTS AND DEFINITIONS Arguments and Argument Forms Argumentation takes place whenever reasons are offered to support some ...

OBJECTIVES: To determine the epidemiology and the underlying pathological conditions of natural deaths among motor vehicle drivers. Sudden death while driving may cause damage to properties, other vehicles or road users. Although the Medical Commission on Accident Prevention recommended restrictions to drivers at risk of sudden death due to their medical conditions, these restrictions are useless if they do not result in greater safety to the public. DESIGN: A retrospective study of natural deaths of motor vehicle drivers. SETTING: Natural deaths (...) of motor vehicle drivers reported to the coroner for Birmingham and Solihull. SUBJECTS: 86 consecutive natural deaths of motor vehicle drivers in a five-year period between 1984 and 1988. RESULTS: Of the 86 fatalities reviewed, 80 (93%) sudden deaths were caused by ischaemic heart disease. Fifty vehicles were involved in collision with 32 properties, 20 other vehicles and six pedestrians. Fifty-one out of 80 cardiac deaths had past cardiac history and three had reported chest pain prior to the sudden death. CONCLUSION: An applied normative ethical assessment based on the basic moral principles of autonomy, justice, beneficence and non-maleficence are discussed. We conclude that medical screening of drivers has little benefit for the drivers or other persons. (shrink)

The relationship between the United Kingdom and the United States seems to embody most fully the type of the ‘special relationship’ today. It is a relationship founded ultimately on biological kinship, structured by mutual economic and strategic interests and cemented by a sense of political and ‘spiritual’ affinity. At least the broad contours of such contemporary ‘special relationships’ are sufficiently clear. This is far from being the case with those of the Archaic and Classical Greek world, for two main reasons. (...) First, and more decisively, our sources for the history of that world – literary, epigraphical, archaeological – are normally scrappy, discontinuous and variously slanted. Second, and only in part because of the nature of the evidence, the workings of all ancient Greek interstate relationships, whether ‘special’ or not, are in principle controversial. For in the absence of governments and parties in the modern sense it is frequently impossible to explain confidently a particular foreign policy decision taken by a Greek state. A fortiori it is in principle even more difficult to describe and account for ‘special’ relationships between states that apparently transcended purely immediate, local and narrowly self-interested considerations. (shrink)

Background and aim With the increasing interest in lifestyle, health and consequences of unhealthy lifestyles for the healthcare system, a new kind of solidarity is gaining importance: lifestyle solidarity. While it might not seem fair to let other people pay for the costs arising from an unhealthy lifestyle, it does not seem fair either to punish people for their lifestyle. However, it is not clear how solidarity is assessed by people, when considering disease risks or lifestyle risks. The aim of (...) this study was to investigate the degree of solidarity with lifestyle as well as with other factors that are related to health outcomes—for example, old age—and the relation between this degree of solidarity and various characteristics. Methods This cross-sectional study is part of the Dutch longitudinal SMILE study. Data on the degree of solidarity with different lifestyles and old age, and the relation between the degree of solidarity and various demographic and other variables were obtained in a questionnaire survey. Results Solidarity with smokers and overweight people was moderate, as was solidarity with older people. Respondents were ambivalent about athletes. Respondents who were younger, male and highly educated, and those with a healthy lifestyle, a small social network, high quality of life and an internal locus of control, showed low solidarity. Conclusions Solidarity with an unhealthy lifestyle and old age is moderate and the degree of solidarity varies among the different subgroups. (shrink)